Home / 23,739.92-32,760.80-13,129.36

Finding the Fourth Proportional to 23,739.92, 32,760.80 and 13,129.36

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Solution

The fourth proportional to 23,739.92, 32,760.80 and 13,129.36 is: 18,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,739.92 : 32,760.80 = 13,129.36 : x
  2. Step 2: Convert to fraction form
    23,739.92/32,760.80 = 13,129.36/x
  3. Step 3: Cross multiply
    23,739.92x = 32,760.80 × 13,129.36
  4. Step 4: Simplify right side
    23,739.92x = 430,128,337.09
  5. Step 5: Solve for x
    x = 430,128,337.09/23,739.92
  6. Step 6: Final answer
    x = 18,118.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.